Mold shell



July3, 1 928. 1,676,199.

- J. R. w o0D MOLD SHELL Filed May 29, 1925 2 Sheets-Sheet 1 INVENTOR 2/ 20 2/ g QMM 6 4 4- 7 24 ATTORNEYS J. R. WQQ OLD SHELL Filed May 29, 1925 2 Sheet-Sheet 2 lNVENl'OR ATTORNEYS ing the mold retaining means.

501 assembled flask.

'vi'Patentecl 3, 1 928; p

31 t swi immens A E EW mamma CAS NG QMBAN or nwaas, new JERSEY, 'e 'coei qaarron pram; @3

Morin sH L.

Application filed May as, 1925. serial ne. 33,60 5.

My present invention relates: to method 7 and means for making casting-molds .of sandiand the "like ina flask and for relieving the .fiask of'the-mol'd for the formation 7 5 of another anold' therein; "It further relates toreleasable mold retaining means in-aflflask mold whichis sotformed as toprevent-the obst'ructionthereof by mold material such as sand andtto aid-in securingl sound and uniform.molds. :It further relatestomeans-for holdin r the mold-during pouring; th'ereinto and .toia shell for this purpose having brace 1 "members across the top thereof' which are,

adjustable on -;the shell-.;,topermit of their 7 placement thereon to providefa clear space.

for pouring wherever thegate may be. po'sr j --tionedin themold. r i i Inthe drawing which illustrates embodiments ofmy invention; a 0 Fig-. 1- is an elevation view of a two part flask adaptedto be relieved of its mold Wit/b01113 the injuring thereof and. having means for detachably engaging the mold,

F ig. 2 is aplan View of the flaskof Fig. 1. Fig. *3 is a section viewalong the line-,33 of Fig. 1 looking in the direction of the "arrows and shows details of means for mov- V Fig.4,is asectional elevation view along the line4-"4 "of Fig. 2 showing a wax pattern and mold in the flask. V I

InFigures 1 to 4 of-the drawings the cope land drag 2 comprisea flask suitable for use with a pattern and with a core box or with matched plates and pattern in a man;

' are'slanted" downwardly and outwardly to permitthe lifting of the flask from amold sides ofthe cope and their lower edge are insetjto provide a rectangular shoulder 9 thereat so thatwhen the cope and drag are assembled "a rectangular channel 10 a is formed in" and about the inner sides of the Connecting with said shoulder 9 (and channel 10) are the H a [shaped slots 12, 12 formed in the lugs 13,

- 13 on said cope. Slidable'f transversely in the inset of shoulder? (and in channel 10) 3 members 18, .18 v which are fixed to each of of the drawings mold parts are formed in the I 1191 Well knowniin the The P1115 [cope l' and drag 2 in Ia'manner weliknown fixed to the lug 5, '5 on either side of the serve to properly position the cope on the fo'rmed thereinl As shown in Fig' 4 the;

oneach; side ofthe flask are the mold retain nig strip members 15 15 which are chaintwo bar membeiis lo, 16. whieh extendfout Wardly, one.throughithe'bottom slot ofeach ofsaidz' H-channels1 12;: 12. ln 'theh-upper' I 7 part of the H channelsland the seat connect, ff;

ing the two side-"slots thereofride the Ti bar' said" members 1 6 16 which'wviththeirislotsi serve :as' guides and Ynieans for holding said 1 members15, 15 on theflas k and in thesho'u't. V ders 9,-9 :thereof. Aboutithegouter sides ofsaid cope 1' and 5 parallel hwithy-tliebottom edges thereof are mounted the shaffts 20, 20-

and 20g20: FVhlCh. V are rotatable in the hosses" 21,- 21'fixed to Tthe 'sideslot said "cope..-;-"Eachf a of-sa-idsh'ai'ts 20and20acarries fixed thereto, two arms 24, 24 and 2 1, 24', each of vv'vhich at its lower end engagesa slot125 ,formedin theouter end of a corresponding one ofs aidfi bar members 16. The said shafts 20 a'nd'20i" form two sets -each set comprising a shaft 20 and shaft 20 which have ends adjacent each other and, which connect for mutual r0 v tation through bevel gears 27 27. ,Gn. the 7 1 arm 24 of each of said shafts 20, 2Q isformed a-handle 28 each of which serves'to rotate the set of shafts towhich it is connected and thereby'to move said members 15,15 into and out of themold retaining position.

y In the use and, operation of the apparatus in the art after which they are properly as: sembled as shown in Figs; 152, andt "Dur ing the inverting of the cope frhm the mold making position to ts position on the drag the mold engaging members 15, 15 are re-f tained in the mold holding positions. After* the Cops and drag are assembled on the v board 43.'the handles 28, 28'a're turnedto' i move said members 15, -15 to disengage them 1012f drag) is lifted from the mold. A mold from the mold, and the flask (cope and large number of molds in rapid succession.

f) and vention the flask is relieved of its mold immediately upon. the formation thereof th erein and is free for immediate use for the making of further molds. The shells are applied to the molds just before pouring thereinto and are then removed and placed on another mold. The usual practice is to use tWo or three shells for a large number of molds and changing one shell from apoured mold to a fresh one While another shell is being used'on a'mold Which is being poured. Like- Wise two or three flasks serve to make a I-claim:

1. In combination, a mold cope having a longitudinal shoulder extending along the bottom of each of opposed inner faces and having openings extending outwardly through the cope Wttll from each of said shoulders, said openings having upwardly facing surfaces, disengageable mold retaining means comprisinga slide extending inwardlymfrom under each of said shoulders and movable completely tl-iereunder means for holding said slides in operative position on said cope comprismg members attached tothe said slides and riding on said upwardly lacing surfaces, and means for 1nov-- ing said slide into and out of the retaining and releasing positions comprising members attached to saidslides and extending through. to the outside of the cope. v

2. Incombination, a mold cope having a longitudinal shoulderextending along the bottom of each of op posed inner"faces. and having openings extending o'utwvardlv through the cope wall from each of said shoulders, said openings having upwardly facing surfaces, disengageable mold retain to the outside of the cope, and actuating moans comp-rising a rotatable shaft mounted to the outside of said cope having a handle therefor and a loose connection withsaid outwardly extending-memberadapted to im part a sliding movement theretotowardand from the inside of the cops;

In testimony whereof I'lIQL'GlO. affix my.

signature.

JOHN iafivo'on. 

